Unit 4 Sandstorms in Asia 核心单词1. concernedadj.忧虑的，担心的；有关的，涉及的常用结构：be concerned about/over/for 关心，挂念be concerned with 与……有关，涉及……as far as ...be concerned 就……来说，就……而言I am concerned about my wife’s hea...

时间:2025-06-13 22:20栏目:中学教育